Sacher Cake is an Austrian national treasure and the signature snack of Sacher Hotel. It originated from the chocolate filling developed by Franz Sacher, the family chef of a prince in 1832, and was highly sought after by the royal family. The exclusive secret recipe of the sand shelf cake is still a dessert lawsuit that is still under debate. Once a dessert shop wanted to buy all the original recipes of the sand shelf family members for a large sum of money, but was refused by the sand shelf.